How much oil goes in a McLane 801-3.5RP edger?

The McLane 801-3.5RP edger typically requires about 20 ounces of 2-cycle engine oil mixed with gasoline. It's important to follow the manufacturer’s specifications for the correct oil-to-gas ratio, which is usually 50:1 for this model. Always consult the owner's manual for specific details and recommendations for optimal performance.